feat(coding-agent): add llama.cpp router integration

packages/coding-agent/src/core/extensions/types.ts

@@ -1482,6 +1482,8 @@ export type InlineExtension =
 			/** Display name shown as `<inline:name>` in the startup Extensions list. */
 			name: string;
 			factory: ExtensionFactory;
+			/** Omit this extension from the startup Extensions list. */
+			hidden?: boolean;
 	  };
 
 // ============================================================================
@@ -1649,6 +1651,7 @@ export interface ExtensionRuntime extends ExtensionRuntimeState, ExtensionAction
 export interface Extension {
 	path: string;
 	resolvedPath: string;
+	hidden?: boolean;
 	sourceInfo: SourceInfo;
 	handlers: Map<string, HandlerFn[]>;
 	tools: Map<string, RegisteredTool>;

packages/coding-agent/src/core/resource-loader.ts

@@ -899,6 +899,7 @@ export class DefaultResourceLoader implements ResourceLoader {
 			const extensionPath = `<inline:${isNamed ? input.name : index + 1}>`;
 			try {
 				const extension = await loadExtensionFromFactory(factory, this.cwd, this.eventBus, runtime, extensionPath);
+				extension.hidden = isNamed && input.hidden;
 				extensions.push(extension);
 			} catch (error) {
 				const message = error instanceof Error ? error.message : "failed to load extension";